Offset

[My01yuk]

I'm going to show my ignorance here but I want to make sure I get this right. I'm looking at getting 22's and need to know what does off set mean? The 5 wheels I'm looking at has different offsets that range from(30,35, and 38) WTF????? The wheels are 22x9.5 6x139.7. My bolt pattern is 6x139.7 anyone have this same bolt pattern that can tell me if any of the offsets mentioned would fit ok? They are going on 305/45/22 falken tires.

 

[blueflamed03]

http://www.tahoeyukonforum.com/forum/showthread.php?t=16087